Files
tryton/inventory.py
T
2011-11-02 16:13:35 +01:00

357 lines
12 KiB
Python

#This file is part of Tryton. The COPYRIGHT file at the top level
#of this repository contains the full copyright notices and license terms.
from trytond.model import ModelWorkflow, ModelView, ModelSQL, fields
from trytond.wizard import Wizard
from trytond.pyson import Not, Equal, Eval, Or, Bool
from trytond.backend import TableHandler
from trytond.transaction import Transaction
from trytond.pool import Pool
STATES = {
'readonly': Not(Equal(Eval('state'), 'draft')),
}
DEPENDS = ['state']
class Inventory(ModelWorkflow, ModelSQL, ModelView):
'Stock Inventory'
_name = 'stock.inventory'
_description = __doc__
_rec_name = 'location'
location = fields.Many2One(
'stock.location', 'Location', required=True,
domain=[('type', '=', 'storage')], states={
'readonly': Or(Not(Equal(Eval('state'), 'draft')),
Bool(Eval('lines'))),
},
depends=['state', 'lines'])
date = fields.Date('Date', required=True, states={
'readonly': Or(Not(Equal(Eval('state'), 'draft')),
Bool(Eval('lines'))),
},
depends=['state', 'lines'])
lost_found = fields.Many2One(
'stock.location', 'Lost and Found', required=True,
domain=[('type', '=', 'lost_found')], states=STATES, depends=DEPENDS)
lines = fields.One2Many(
'stock.inventory.line', 'inventory', 'Lines', states=STATES,
depends=DEPENDS)
company = fields.Many2One('company.company', 'Company', required=True,
states={
'readonly': Or(Not(Equal(Eval('state'), 'draft')),
Bool(Eval('lines'))),
},
depends=['state', 'lines'])
state = fields.Selection([
('draft', 'Draft'),
('done', 'Done'),
('cancel', 'Canceled'),
], 'State', readonly=True, select=1)
def __init__(self):
super(Inventory, self).__init__()
self._order.insert(0, ('date', 'DESC'))
def init(self, module_name):
super(Inventory, self).init(module_name)
cursor = Transaction().cursor
# Add index on create_date
table = TableHandler(cursor, self, module_name)
table.index_action('create_date', action='add')
def default_state(self):
return 'draft'
def default_date(self):
date_obj = Pool().get('ir.date')
return date_obj.today()
def default_company(self):
return Transaction().context.get('company') or False
def default_lost_found(self):
location_obj = Pool().get('stock.location')
location_ids = location_obj.search(self.lost_found.domain)
if len(location_ids) == 1:
return location_ids[0]
return False
def wkf_draft(self, inventory):
self.write(inventory.id, {
'state': 'draft',
})
def wkf_cancel(self, inventory):
line_obj = Pool().get("stock.inventory.line")
line_obj.cancel_move(inventory.lines)
self.write(inventory.id, {
'state': 'cancel',
})
def wkf_done(self, inventory):
line_obj = Pool().get('stock.inventory.line')
for line in inventory.lines:
line_obj.create_move(line)
self.write(inventory.id, {
'state': 'done',
})
def copy(self, ids, default=None):
date_obj = Pool().get('ir.date')
line_obj = Pool().get('stock.inventory.line')
int_id = False
if isinstance(ids, (int, long)):
int_id = True
ids = [ids]
if default is None:
default = {}
default = default.copy()
default['date'] = date_obj.today()
default['lines'] = False
new_ids = []
for inventory in self.browse(ids):
new_id = super(Inventory, self).copy(inventory.id, default=default)
line_obj.copy([x.id for x in inventory.lines],
default={
'inventory': new_id,
'move': False,
})
self.complete_lines(new_id)
new_ids.append(new_id)
if int_id:
return new_ids[0]
return new_ids
def complete_lines(self, ids):
'''
Complete or update the inventories
:param ids: the ids of stock.inventory
:param context: the context
'''
pool = Pool()
line_obj = pool.get('stock.inventory.line')
product_obj = pool.get('product.product')
if isinstance(ids, (int, long)):
ids = [ids]
inventories = self.browse(ids)
for inventory in inventories:
# Compute product quantities
with Transaction().set_context(stock_date_end=inventory.date):
pbl = product_obj.products_by_location(
[inventory.location.id])
# Index some data
product2uom = {}
product2type = {}
for product in product_obj.browse([line[1] for line in pbl]):
product2uom[product.id] = product.default_uom.id
product2type[product.id] = product.type
product_qty = {}
for (location, product), quantity in pbl.iteritems():
product_qty[product] = (quantity, product2uom[product])
# Update existing lines
for line in inventory.lines:
if not (line.product.active and
line.product.type == 'stockable'):
line_obj.delete(line.id)
continue
if line.product.id in product_qty:
quantity, uom_id = product_qty.pop(line.product.id)
elif line.product.id in product2uom:
quantity, uom_id = 0.0, product2uom[line.product.id]
else:
quantity, uom_id = 0.0, line.product.default_uom.id
values = line_obj.update_values4complete(line, quantity, uom_id)
if values:
line_obj.write(line.id, values)
# Create lines if needed
for product_id in product_qty:
if product2type[product_id] != 'stockable':
continue
quantity, uom_id = product_qty[product_id]
values = line_obj.create_values4complete(product_id, inventory,
quantity, uom_id)
line_obj.create(values)
Inventory()
class InventoryLine(ModelSQL, ModelView):
'Stock Inventory Line'
_name = 'stock.inventory.line'
_description = __doc__
_rec_name = 'product'
product = fields.Many2One('product.product', 'Product', required=True,
domain=[('type', '=', 'stockable')], on_change=['product'])
uom = fields.Function(fields.Many2One('product.uom', 'UOM'), 'get_uom')
unit_digits = fields.Function(fields.Integer('Unit Digits'),
'get_unit_digits')
expected_quantity = fields.Float('Expected Quantity',
digits=(16, Eval('unit_digits', 2)), readonly=True,
depends=['unit_digits'])
quantity = fields.Float('Quantity', digits=(16, Eval('unit_digits', 2)),
depends=['unit_digits'])
move = fields.Many2One('stock.move', 'Move', readonly=True)
inventory = fields.Many2One('stock.inventory', 'Inventory', required=True,
ondelete='CASCADE')
def __init__(self):
super(InventoryLine, self).__init__()
self._sql_constraints += [
('check_line_qty_pos',
'CHECK(quantity >= 0.0)', 'Line quantity must be positive!'),
('inventory_product_uniq', 'UNIQUE(inventory, product)',
'Product must be unique by inventory!'),
]
self._order.insert(0, ('product', 'ASC'))
def default_unit_digits(self):
return 2
def on_change_product(self, vals):
product_obj = Pool().get('product.product')
res = {}
res['unit_digits'] = 2
if vals.get('product'):
product = product_obj.browse(vals['product'])
res['uom'] = product.default_uom.id
res['uom.rec_name'] = product.default_uom.rec_name
res['unit_digits'] = product.default_uom.digits
return res
def get_uom(self, ids, name):
res = {}
for line in self.browse(ids):
res[line.id] = line.product.default_uom.id
return res
def get_unit_digits(self, ids, name):
res = {}
for line in self.browse(ids):
res[line.id] = line.product.default_uom.digits
return res
def cancel_move(self, lines):
move_obj = Pool().get('stock.move')
move_obj.write( [l.move.id for l in lines if l.move], {
'state': 'cancel',
})
move_obj.delete([l.move.id for l in lines if l.move])
self.write([l.id for l in lines if l.move], {
'move': False,
})
def create_move(self, line):
'''
Create move for an inventory line
:param line: a BrowseRecord of inventory.line
:return: the stock.move id or None
'''
move_obj = Pool().get('stock.move')
uom_obj = Pool().get('product.uom')
delta_qty = uom_obj.compute_qty(line.uom,
line.expected_quantity - line.quantity,
line.uom)
if delta_qty == 0.0:
return
from_location = line.inventory.location.id
to_location = line.inventory.lost_found.id
if delta_qty < 0:
(from_location, to_location, delta_qty) = \
(to_location, from_location, -delta_qty)
move_id = move_obj.create({
'from_location': from_location,
'to_location': to_location,
'quantity': delta_qty,
'product': line.product.id,
'uom': line.uom.id,
'company': line.inventory.company.id,
'state': 'done',
'effective_date': line.inventory.date,
})
self.write(line.id, {
'move': move_id,
})
return move_id
def update_values4complete(self, line, quantity, uom_id):
'''
Return update values to complete inventory
:param line: a BrowseRecord of inventory.line
:param quantity: the actual product quantity for the inventory location
:param uom_id: the UoM id of the product line
:return: a dictionary
'''
res = {}
# if nothing changed, no update
if line.quantity == line.expected_quantity == quantity \
and line.uom.id == uom_id:
return {}
res['expected_quantity'] = quantity
res['uom'] = uom_id
# update also quantity field if not edited
if line.quantity == line.expected_quantity:
res['quantity'] = max(quantity, 0.0)
return res
def create_values4complete(self, product_id, inventory, quantity, uom_id):
'''
Return create values to complete inventory
:param product_id: the product.product id
:param inventory: a BrowseRecord of inventory.inventory
:param quantity: the actual product quantity for the inventory location
:param uom_id: the UoM id of the product_id
:return: a dictionary
'''
return {
'inventory': inventory.id,
'product': product_id,
'expected_quantity': quantity,
'quantity': max(quantity, 0.0),
'uom': uom_id,
}
InventoryLine()
class CompleteInventory(Wizard):
'Complete Inventory'
_name = 'stock.inventory.complete'
states = {
'init': {
'result': {
'type': 'action',
'action': '_complete',
'state': 'end',
},
},
}
def _complete(self, data):
inventory_obj = Pool().get('stock.inventory')
inventory_obj.complete_lines(data['ids'])
return {}
CompleteInventory()